title: Thermally stable autonomic healing in epoxy using a dual-microcapsule system.
abstract: Self-healing is achieved with a dual-microcapsule system utilizing epoxy-amine chemistry in a high temperature cured thermosetting epoxy polymer. One capsule contains a modified aliphatic polyamine prepared by vacuum infiltration of polyoxypropylenetriamine into hollow polymeric microcapsules. The second capsule contains a difunctional epoxide and reactive diluent. Healing efficiency is accessed through recovery of fracture toughness and excellent long-term stability at ambient conditions is demonstrated.
authors.affiliation: Aerospace Engineering Department, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Henghua
authors.initials: H
authors.lastname: Jin
authors.forename: Chris L
authors.initials: CL
authors.lastname: Mangun
authors.forename: Anthony S
authors.initials: AS
authors.lastname: Griffin
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Moore
authors.forename: Nancy R
authors.initials: NR
authors.lastname: Sottos
authors.forename: Scott R
authors.initials: SR
authors.lastname: White
keywords: amine microcapsule; fracture toughness; self-healing thermoset